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Finding the Fourth Proportional to 58,480.79, 80,703.34 and 31,623.21

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Solution

The fourth proportional to 58,480.79, 80,703.34 and 31,623.21 is: 43,639.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,480.79 : 80,703.34 = 31,623.21 : x
  2. Step 2: Convert to fraction form
    58,480.79/80,703.34 = 31,623.21/x
  3. Step 3: Cross multiply
    58,480.79x = 80,703.34 × 31,623.21
  4. Step 4: Simplify right side
    58,480.79x = 2,552,098,589.46
  5. Step 5: Solve for x
    x = 2,552,098,589.46/58,480.79
  6. Step 6: Final answer
    x = 43,639.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.